Hey!

What is У - 3 = 4 ?

Explain it into your own words.

7

Step-by-step explanation:

The answer is 7 because you have to add 3 from both side, since addition is the inverse of subtraction, -3 + 3 = 0 and 4 + 3 = 7. To check, do 7 - 3, which equals to 4. Therefore, y = 7.

y = 7

Step-by-step explanation:

y - 3 = 4

First, you add 3 to both sides.

y = 4 + 3 < ( 3 cancels out )

+3 +3

So, now you just add 4 + 3 to get 7.

Therefore, y - 3 = 4 eqauls y = 7

                                have game               dont have it               total
have laptop                   15                              50                         65
dont have                       50                             15                         65
total                                65                              65                       130

have both a laptop and a game : 15